This inventor holds 1 USPTO granted patent. Top assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, The Tokyo Electric Power Company, Incorporated. Active years: 1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 306 
1 out of 177 Years Active: 1986
Title: Norio Kainuma: Inventor of a Shield Tunneling Machine.
Introduction
Norio Kainuma is an inventor associated with Tokyo, Japan. His recorded patent concerns equipment for positioning tunnel segments during shield tunneling.
Latest Patents
Kainuma’s listed patent is titled “Shield Tunneling Machine.” It describes a segment-holding member that moves radially through a lifting beam to hold and position a tunnel segment within a shield frame. A pivoting end balancer connects to a base or root balancer that slides along the lifting beam, allowing the segment’s posture to be adjusted for accurate placement. The design aims to make segment erection and assembly easier. Kainuma is credited with 1 patent in the supplied information.
Career Highlights
The supplied career information associates Kainuma with The Tokyo Electric Power Company, Incorporated, and Ishikawajima-Harima Heavy Industries Co., Ltd.
Collaborations
His listed coworkers include Akira Tanaka and Takashi Sakuraya.
Conclusion
Norio Kainuma’s recorded invention addresses the practical challenge of accurately positioning tunnel segments, supporting more efficient assembly during shield tunneling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile